This paper studies the incentives of an unregulated monopolist to undertake the socially optimal investment in NGA networks when it takes into account the fact that the NGA deployment is a two-dimensional investment decision concerning both the quality (or equivalently, technology) and the...

We study the impact of the access charges of copper and fiber unbundling on an incumbent's incentives to invest in fiber access networks. Once the fiber deployment is in place, the incumbent and the entrant compete for consumers in both copper and fiber markets. We show that when the regulator...

This paper provides a useful guide for telecom regulators on how to calculate the cost of an efficient operator investing in Next Generation Access (NGA) networks under regulatory uncertainty. When the regulator cannot make ex ante credible commitments, operators undertake their optimal...